海洋能多能互补独立发电系统控制技术研究

发布时间：2018-01-17 15:22

本文关键词：海洋能多能互补独立发电系统控制技术研究　出处：《国家海洋技术中心》2014年硕士论文　论文类型：学位论文

【摘要】：在传统能源逐渐短缺、环境污染日益严重的情况下，可再生能源开发具有广阔的应用前景。目前，我国还有众多海岛地区处于无电或缺电状态，海洋能多能互补独立发电系统能够利用海岛地区丰富的海洋能源，满足这部分无电人口的用电需求。此外，从长远角度看，发展大规模的海洋能多能互补独立发电系统，建立区域电网，逐步替代传统能源，，能够在一定程度上解决能源危机和环境问题。随着多能互补发电系统的逐步发展，对其控制技术的要求也越来越高，良好的控制技术能够促进多能互补独立发电系统的发展。本文研究海洋可再生能源多能互补独立发电系统控制技术，制定了适合多能互补发电系统的控制策略，设计了适合海岛环境应用的控制器。本文的主要研究内容和成果如下： 1.介绍了海洋能多能互补独立发电系统的国内外研究进展，分析总结了电源优化配置、系统硬件设计与软件设计的研究现状。 2.针对海洋能等可再生能源的特点，基于遗传算法理论，建立了多能互补独立发电系统电源优化配置模型，采用经济模型作为目标函数，分析了现场安装条件、资源互补特性条件、电源与负荷匹配等约束条件。并以大管岛资源、负荷情况为例得出电源、储能、负荷的优化配置计算结果。 3.详细分析了海洋能多能互补独立发电系统控制策略，包括以下内容：（1）分析系统能量管理控制策略的三种实现方式，即通过控制储能系统、风电系统、负荷投切来实现能量调度管理，详细分析了系统的能量流动情况；（2）设计了闭环电压模式PWM控制策略，在输入电压具有波动性的条件下，利用PID控制器和PWM控制，构建闭环电压反馈回路，保证Boost变换电路输出电压的稳定性。利用MATLANB/Simulink进行Boost电路的控制仿真，仿真表明，闭环电压模式PWM控制策略具有较好的控制效果；（3）制定蓄电池的恒压限流充放电控制策略、分组管理控制策略及其各自的实现方式。结合不同的系统结构，分析分组管理控制策略，并进行仿真分析。 4.设计了适合海岛环境应用的控制器。根据拟定的控制策略和实际应用条件，对控制器的软硬件设备进行选型，并结合海岛环境特点，进行控制器的硬件、软件以及防腐设计，实现了控制功能和相关的保护功能，为多能互补独立发电系统控制器的设计提供技术支持。
[Abstract]:With the shortage of traditional energy and the increasingly serious environmental pollution, renewable energy development has a broad application prospect. At present, there are still many island areas in our country without electricity or electricity. Ocean energy complementary independent power generation system can take advantage of the rich marine energy in the island area to meet the electricity demand of this part of the population without electricity. In addition, from a long-term perspective. Develop large-scale ocean energy multi-energy complementary independent power generation system, establish regional power grid, step by step replace traditional energy sources. It can solve the energy crisis and environmental problems to a certain extent. With the gradual development of multi-energy complementary power generation system, the requirements of its control technology are becoming higher and higher. Good control technology can promote the development of multi-energy complementary independent power generation system. This paper studies the control technology of marine renewable energy multi-energy complementary independent power generation system, and formulates the control strategy suitable for multi-energy complementary power generation system. The main contents and results of this paper are as follows: 1. The research progress of marine multi-energy complementary independent power generation system at home and abroad is introduced, and the research status of power source optimization, system hardware design and software design is analyzed and summarized. 2. According to the characteristics of marine energy and other renewable energy, based on the genetic algorithm theory, a multi-energy complementary independent power generation system power allocation model is established, and the economic model is used as the objective function. The field installation condition, resource complementary characteristic condition, power supply and load matching constraint condition are analyzed. The optimal configuration of power supply, energy storage and load is obtained by taking the resource and load situation of big pipe island as an example. 3. The control strategy of marine multi-energy complementary independent power generation system is analyzed in detail, including the following: 1) analyzing three ways to realize the energy management and control strategy of the system, that is, controlling the energy storage system, the wind power system, and the load switching to realize the energy dispatch management. The energy flow of the system is analyzed in detail. The closed-loop voltage-mode PWM control strategy is designed. Under the condition that the input voltage is fluctuating, the closed-loop voltage feedback loop is constructed by using the PID controller and PWM control. The stability of output voltage of Boost converter circuit is guaranteed. The control simulation of Boost circuit using MATLANB/Simulink is carried out, and the simulation results show that. The closed-loop voltage mode PWM control strategy has good control effect. 3) the control strategy of constant voltage and current limit charge and discharge, the control strategy of packet management and their respective implementation methods are formulated, and combined with different system structures, the strategy of packet management control is analyzed, and the simulation analysis is carried out. 4. The controller suitable for island environment application is designed. According to the proposed control strategy and practical application conditions, the hardware and software equipment of the controller are selected, and the hardware of the controller is carried out according to the characteristics of the island environment. The software and anticorrosion design have realized the control function and the related protection function, and provided the technical support for the design of the multi-energy complementary independent power system controller.
【学位授予单位】：国家海洋技术中心
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM612;P743

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